*{
    margin:0;
    padding:0;
}
ul{
    list-style: none;
//  padding:0;
}
a{
    text-decoration: none;
    color:#fff;
}
img{
    vertical-align: middle;
}
.text-align{
    text-align: center;
}
body{
    font-size: 14px;
    line-height: 1.42857;
    color: rgb(118, 121, 123);
    background-color: rgb(243, 243, 243);
    font-family: " arial", " Hiragino Sans GB ", " Microsoft Yahei ", "微软雅黑", "宋体", "Tahoma", "Arial"," Helvetica", "STHeiti";
    #wrap{
        width:100%;
        height:50px;
        background:rgba(0,0,0,0.8);
    }
    .logo{
        width:1200px;
        height:50px;
        margin:0 auto;
        position:relative;
        left:0;
        top:0;
        #lg{
            display:block;
            padding:8px 15px;
            font-size:0;
            float:left;
            h1{
                width:84px;
                height:34px;
                background:url('http://res.alltuu.com/static/images/navbar-logo.png') no-repeat;
                background-size:100% 100%;   
            }
        }
        #lg1{
            li{
                float:left;
                padding:14px 15px;
                a{
                    font-size:13px;
                }
                &:hover{
                    background:rgba(0,0,0,0.1);
                }
            }
        }
        input{
            width:150px;
            height:30px;
            margin:8px 15px;
            text-indent: 5px;
            float:right;
            transition:0.3s all ;
            outline: none;
        }
        #lg2{
            height:50px;
            float:left;
            float:right;
            li{
                float:left;
                padding:14px 0;
                a{
                    font-size:13px;
                    padding:0 15px;
                }
            }
        }
    }

    .pic-nav{
//      position: fixed;
        z-index: 3;
        background: #FFF;
        width: 100%;
        height: 64px;
        box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.17);
        text-align: center;
        .active{
            height: 64px;
            border-bottom: 4px solid #0099E5;
            color: #0099E5;
        }
        .discover{
            margin: 0 20px;
            height: 64px;
            line-height: 64px;
            font-size: 16px;
            display: inline-block;
            cursor: pointer;  
        }   
    }
    .pic-tag{
//      padding-top:70px;
        .container-50 {
            margin: 10px 50px;
            min-width: 1100px;
            .tag-list {
                padding-left: 0;
                width: 100%;
                max-width: 1804px;
                background: #FFF;
                display: block;
                overflow: hidden;
                margin: 0 auto;
                li {
                    display: inline-block;
                    width: 8.45%;
                    padding: 10px 0px;
                    padding-left: 7px;
                    position: relative;
                    .tag-bg {
                        cursor: pointer;
                        position: relative;
                        img {
                            width: 100%;
                            display: inline-block;
                            pointer-events: none;
                        }
                        .cover {
                            position: absolute;
                            top: 0;
                            left: 0;
                            width: 100%;
                            height: 100%;
                            line-height: 100%;
                            background: rgba(0, 0, 0, 0.3);
                            display: inline-block;
                            color: #FFF;
                            font-size: 20px;
                            cursor: pointer;
                            transition: background 0.3s, font-size 0.3s; 
                            &:hover{
                              background: rgba(0, 0, 0, 0);  
                            }
                            .tag-name {
                                width: 50px;
                                height: 22px;
                                position: absolute;
                                top: 0;
                                right: 0;
                                bottom: 0;
                                left: 0;
                                margin: auto;
                                text-align: center;
                            }
                        } 
                        .line {
                            position: absolute;
                            display: none;
                            width: calc(100%);
                            bottom: -10px;
                            left: 0px;
                            height: 4px;
                        } 
                    }
                }
                .pull-left {
                    float: left !important;
                }
            }    
        }
    }
    .main{
        .container-50{
            margin: 10px 50px;
            min-width: 1100px;
            background:#fff;
            ul{
                width:100%;
//              overflow: hidden;
                display:flex;
                flex-flow:wrap row;
                justify-content: space-around;
                li{
                   height:278px;
//                 float:left;
                   padding-top:8px;
                   padding-left:8px;
                   a{
                       img{
                           height:100%;
                       } 
                   } 
                }
            } 
        }
    }
    .back{
        width:44px;
        height:60px;
//      background:pink;
        position: fixed;
        bottom:70px;
        right:100px;
        cursor: pointer;
        
        &:hover{
            .circle{   
                background:#ccc;
            } 
            p{
                color:#ccc;
            } 
        }
        .circle{
            width:40px;
            height:40px;
            line-height: 40px;
            text-align: center;
            border-radius: 20px;
            background: #404345;
            color:#ccc; 
            font-size:20px; 
        }
        p{
            line-height: 20px;
            color: #404345;
        }
    }
}